# Iran closes its airspace by May 31?

> Polymarket binary prediction market. 45% implied probability of YES as of Wed, 20 May 2026 20:52:14 GMT. 24h change +4.0pp, 24h volume $251.4K.

**Canonical URL:** https://orrery.me/markets/iran-closes-its-airspace-by-may-31-434-443-672-526-188-756
**Polymarket source:** https://polymarket.com/event/iran-closes-its-airspace-by-may-31-434-443-672-526-188-756
**Category:** Geopolitics
**Resolves by:** May 31, 2026
**Last fetched:** 2026-05-20T20:52:14.108Z

## Live snapshot

| Metric | Value |
|---|---|
| YES probability | **45¢** (45%) |
| Δ 1h | -2.0pp |
| Δ 24h | +4.0pp |
| Δ 1w | +6.5pp |
| 24h volume | $251.4K |
| Lifetime volume | $3.7M |
| Liquidity (orderbook depth) | $74.8K |
| Spread | 1.00pp |

## Resolution

**Resolves by:** May 31, 2026

**Source:** the market description on Polymarket; final settlement via UMA optimistic oracle.

### Market description (verbatim from Polymarket)

> This market will resolve to “Yes” if Iran initiates a major closure of its airspace, that is not solely due to weather conditions, by the listed date, 11:59 PM ET. Otherwise, this market will resolve to “No”.
> 
> A “major closure” is defined as a broad closure, cancellation, or suspension of commercial flights transiting, arriving in, and departing from Iranian airspace or a major Iranian Airspace region. A qualifying closure must apply generally to flights across Iran or a major Iranian airspace region. Limited cancellations, delays, or other partial closures will not qualify. Limited exceptions to a broad closure, however, will not disqualify such a closure from counting (e.g. exceptions for certain flights pre-approved by the Iranian Civil Aviation Authority may be permitted). 
> 
> Any non-weather complete suspension of commercial arrivals and departures affecting at least two of the following airports will qualify: Imam Khomeini International Airport (IKA), Mehrabad Airport (THR), Mashhad International Airport (MHD), Shiraz International Airport (SYZ), or Isfahan International Airport (IFN).
> 
> Qualifying previous examples include the January 2026 total closure of Iranian airspace except to international flights with express governmental permission (https://www.reuters.com/world/middle-east/iran-shuts-airspace-most-flights-flightradar24-says-2026-01-14/) and the April 2024 closure of Iran’s western airspace (https://www.reuters.com/world/middle-east/iranian-airports-cancel-flights-until-monday-morning-2024-04-14/). Non-qualifying examples include the January 27, 2026 partial closure of Iranian airspace around the Strait of Hormuz (https://www.aa.com.tr/en/middle-east/iran-issues-airspace-notice-for-military-drills-near-strait-of-hormuz/3812508) and the January 25 - April 25, 2026 VFR (Visual Flight Rules) flights suspension which did not broadly close commercial aviation in a qualifying region (https://www.intellinews.com/iran-suspends-general-aviation-and-vfr-flights-in-new-airspace-directive-421997/).
> 
> Warnings, No-Fly-Zones, or other flight restrictions imposed by airlines or countries other than Iran will not be sufficient for a “Yes” resolution.
> 
> Airspace closures which occur solely due to weather conditions will not qualify.
> 
> The primary resolution sources for this market will be official information from Iranian aviation authorities and a consensus of credible reporting.

## Active signals

Signals are deterministic rules with explicit confidence (0..1). They describe *why a price moved* — they are not trade recommendations and do not predict the outcome.

- **divergence** (confidence 60%): Price is moving against its 24h trend — 1h -2.0pp vs. 24h +4.0pp.

## Top holders

**Top YES holders**

- `0x9648…6825` — 203,447.875 shares
- `0xcb4c…6d64` — 41,999.819 shares
- `0x01d1…12a4` — 37,224.621 shares
- `0xa022…77f8` — 36,253.105 shares
- `0xf9c1…39e2` — 34,999.862 shares

**Top NO holders**

- `0xbf93…2fd7` — 155,817.081 shares
- `0xecaa…77a9` — 33,868.913 shares
- `0x162f…798d` — 29,699.744 shares
- `0xf284…b9f9` — 24,270.05 shares
- `0x61e7…6e8b` — 22,250.433 shares

## 7-day price-history summary

| Metric | Value |
|---|---|
| Sample count | 168 |
| Window start | 2026-05-13T19:00:07.000Z |
| Window end | 2026-05-20T18:39:04.000Z |
| Range | 32¢ → 55¢ |
| Net change | -7.0pp |

Full series available as JSON via `GET https://orrery.me/api/markets?slugs=iran-closes-its-airspace-by-may-31-434-443-672-526-188-756` — the chart on the human page is rendered from this same data.

## Cite this

```
Orrery. "Iran closes its airspace by May 31? — 45% on Polymarket."
Retrieved 2026-05-20T20:52:14.108Z from https://orrery.me/markets/iran-closes-its-airspace-by-may-31-434-443-672-526-188-756.
```

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